Leading 20-17 with 1:09 to play, Miami had SMU 4th and 9 on their own 48, down to their last play.
Mario Cristobal called timeout just before the snap. Officials blew the play dead.
And Hurricanes edge rusher Marquise Lightfoot plowed into Mustangs quarterback Kevin Jennings. A flag for unnecessary roughness gave SMU a fresh set of downs and new life, first and 10 at the Miami 47.
Jennings drove his team 69 yards in 11 plays to set up a tying field goal and send the game into overtime. The No. 10-ranked Canes were 10.